The Honda CB400 (twin) is a series of Honda motorcycles produced in the late 1970s and could be considered a successor to the popular CB350 and CB360. The CB400 series preceded the CM400, CB450, and CM450 series. Despite their similar nomenclature, the CB400 twin series is not derived from the earlier four-cylinder CB400F nor the earlier CB450. CB400T CB400A CB400C CB450T CB450SC Nighthawk 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 78 79 80 81 82 83 84 85 86 87